How can I remove my IP address from email blacklists?

If your server’s IP address has been blacklisted by an email provider, the de-listing request must be submitted directly by you. At Contabo, we’re unable to request blacklist removals on your behalf, as email providers require sender-specific information that only the IP owner or mail administrator can provide.

Why Contabo cannot remove blacklist entries

Email blacklist removals require verification details such as:

• sender configuration

• mail server setup

• authentication records 

This information is specific to your email setup and cannot be accessed or provided by Contabo.

Below you’ll find links to the de-listing processes of major email providers.

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How can I remove my IP address from Microsoft's blacklist?

You can request removal from Microsoft’s blacklist using the official form on their website: Microsoft de-listing form.

How can I remove my IP address from Yahoo's blacklist?

You can submit a de-listing request via Yahoo’s official process: Yahoo de-listing form.

How can I remove my IP address from Google's blacklist?

You can request removal from Google’s blacklist through their official channels: Google delisting form.

For best results, we also recommend reviewing Google’s sender guidelines before submitting your request.
See: Google’s email sender recommendations. 

Additional recommendations

⚠️ Important: Before requesting de-listing, make sure your mail server is correctly configured and secured. Repeated blacklist listings are often caused by misconfigured mail servers, compromised accounts, or missing email authentication records.

If you continue to experience email delivery issues after de-listing, review your mail setup or contact a mail administrator for further assistance.